adj. 五倍子的;镓的,瘿的;法国人的
n. (Gallic)人名;(法)加利克
It means not simply 'French,' but 'characteristically', 'delightfully', 'distressingly', or 'amusingly' 'French' ... not 'of France', but 'of the typical Frenchman'. [Fowler]As "of or pertaining to the ancient Gauls" from 1796.